Home / 208,204.43-287,322.21-112,711.12

Finding the Fourth Proportional to 208,204.43, 287,322.21 and 112,711.12

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Solution

The fourth proportional to 208,204.43, 287,322.21 and 112,711.12 is: 155,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,204.43 : 287,322.21 = 112,711.12 : x
  2. Step 2: Convert to fraction form
    208,204.43/287,322.21 = 112,711.12/x
  3. Step 3: Cross multiply
    208,204.43x = 287,322.21 × 112,711.12
  4. Step 4: Simplify right side
    208,204.43x = 32,384,409,098.20
  5. Step 5: Solve for x
    x = 32,384,409,098.20/208,204.43
  6. Step 6: Final answer
    x = 155,541.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.